Aciclinium Torr. & A.Gray accepted as Bigelowia DC. (original description)
Actinella linearifolia Torr. & A.Gray (original description)
Actinomeris alba (Michx.) Torr. & A.Gray (original description)
Actinomeris squarrosa var. alternifolia (L.) Torr. & A.Gray accepted as Verbesina alternifolia (L.) Britton ex Kearney (original description)
Actinomeris squarrosa var. oppositifolia (Fresen.) Torr. & A.Gray accepted as Verbesina coreopsis Michx. (original description)
Actinospermum angustifolium (Pursh) Torr. & A.Gray accepted as Balduina angustifolia (Pursh) B.L.Rob. (original description)
Adenocaulon bicolor var. integrifolium (Nutt.) Torr. & A.Gray accepted as Adenocaulon bicolor Hook. (original description)
Ambrosia coronopifolia Torr. & A.Gray accepted as Ambrosia psilostachya DC. (original description)
Ambrosia trifida var. integrifolia (Muhl. ex Willd.) Torr. & A.Gray (original description)
Antennaria alpina var. monocephala (DC.) Torr. & A.Gray accepted as Antennaria monocephala DC. (original description)
Antennaria dimorpha (Nutt.) Torr. & A.Gray (original description)
Antennaria dioica var. parvifolia (Nutt.) Torr. & A.Gray accepted as Antennaria parvifolia Nutt. (original description)
Antennaria luzuloides Torr. & A.Gray (original description)
Antennaria plantaginifolia var. monocephala Torr. & A.Gray accepted as Antennaria solitaria Rydb. (original description)
Apargidium Torr. & A.Gray accepted as Haplopappus Cass. (original description)
Apargidium boreale (Bong.) Torr. & A.Gray accepted as Microseris borealis (Bong.) Sch.Bip. (original description)
Aphanostephus riddelii Torr. & A.Gray (original description)
Arnica angustifolia var. lessingii Torr. & A.Gray accepted as Arnica lessingii (Torr. & A.Gray) Greene (original description)
Artemisia borealis var. besseri Torr. & A.Gray (original description)
Artemisia dracunculoides var. brevifolia Torr. & A.Gray accepted as Artemisia dracunculus L. (original description)
Artemisia dracunculoides var. incana Torr. & A.Gray accepted as Artemisia dracunculus L. (original description)
Artemisia dracunculoides var. tenuifolia Torr. & A.Gray accepted as Artemisia dracunculus L. (original description)
Artemisia lewisii Torr. & A.Gray (original description)
Artemisia pycnostachya Torr. & A.Gray accepted as Artemisia pycnocephala (Less.) DC. (original description)
Aster angustus (Lindl.) Torr. & A.Gray (original description)
Aster anomalus Engelm. (original description)
Aster asperulus Torr. & A.Gray accepted as Symphyotrichum undulatum (L.) G.L.Nesom (original description)
Aster autumnalis Wender. ex Nees, sec.Torr. & A.Gray accepted as Symphyotrichum undulatum (L.) G.L.Nesom (original description)
Aster baldwinii Torr. & A.Gray accepted as Symphyotrichum undulatum (L.) G.L.Nesom (original description)
Aster carneus var. subasper (Lindl. ex Hook.) Torr. & A.Gray (original description)
Aster chapmanii Torr. & A.Gray accepted as Symphyotrichum chapmanii (Torr. & A.Gray) Semple & Brouillet (original description)
Aster curtisii Torr. & A.Gray accepted as Symphyotrichum retroflexum G.L.Nesom (original description)
Aster divaricatus Nutt. (original description)
Aster divaricatus (Nutt.) Torr. & A.Gray accepted as Symphyotrichum subulatum var. ligulatum (Shinners) S.D.Sundb. (original description)
Aster dumosus var. coridifolius (Michx.) Torr. & A.Gray accepted as Symphyotrichum dumosum var. dumosum (L.) G.L.Nesom (original description)
Aster dumosus var. gracilentus Torr. & A.Gray accepted as Symphyotrichum dumosum var. dumosum (L.) G.L.Nesom (original description)
Aster dumosus var. subracemosus Torr. & A.Gray accepted as Symphyotrichum dumosum (L.) G.L.Nesom (original description)
Aster dumosus var. subulifolius Torr. & A.Gray (original description)
Aster dumosus var. verus Torr. & A.Gray (original description)
Aster elegans (Nutt.) Torr. & A.Gray accepted as Eucephalus elegans Nutt. (original description)
Aster elliottii Torr. & A.Gray accepted as Symphyotrichum elliottii (Torr. & A.Gray) G.L.Nesom (original description)
Aster elodes Torr. & A.Gray accepted as Symphyotrichum novi-belgii var. elodes (Torr. & A.Gray) G.L.Nesom (original description)
Aster ericoides var. villosus (Michx.) Torr. & A.Gray accepted as Symphyotrichum pilosum (Willd.) G.L.Nesom (original description)
Aster eryngiifolius Torr. & A.Gray accepted as Eurybia eryngiifolia (Torr. & A.Gray) G.L.Nesom (original description)
Aster frondosus (Nutt.) Torr. & A.Gray accepted as Symphyotrichum frondosum (Nutt.) G.L.Nesom (original description)
Aster glabriusculus (Nutt.) Torr. & A.Gray (original description)
Aster glaucus (Nutt.) Torr. & A.Gray accepted as Herrickia glauca (Nutt.) Brouillet (original description)
Aster gracilentus Torr. & A.Gray accepted as Symphyotrichum laeve var. purpuratum (Nees) G.L.Nesom (original description)
Aster greenii Nees ex Torr. & A.Gray (original description)
Aster laxus Torr. & A.Gray accepted as Symphyotrichum novi-belgii (L.) G.L.Nesom (original description)
Aster lindleyanus Torr. & A.Gray accepted as Symphyotrichum ciliolatum (Lindl.) Á.Löve & D.Löve (original description)
Aster linifolius Torr. & A.Gray accepted as Aster subulatus Michx. (original description)
Aster lutescens (Lindl. ex DC.) Torr. & A.Gray accepted as Solidago lutescens (Lindl. ex DC.) B.Boivin (original description)
Aster miser var. diffusus Torr. & A.Gray (original description)
Aster miser var. hirsuticaulis (Lindl. ex DC.) Torr. & A.Gray (original description)
Aster multiflorus var. commutatus Torr. & A.Gray accepted as Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom (original description)
Aster multiflorus var. stricticaulis Torr. & A.Gray accepted as Symphyotrichum ericoides (L.) G.L.Nesom (original description)
Aster mutatus Torr. & A.Gray accepted as Canadanthus modestus (Lindl.) G.L.Nesom (original description)
Aster nuttallii Torr. & A.Gray accepted as Symphyotrichum ascendens (Lindl.) G.L.Nesom (original description)
Aster occidentalis (Nutt.) Torr. & A.Gray accepted as Symphyotrichum spathulatum var. spathulatum (Lindl.) G.L.Nesom (original description)
Aster oreganus Torr. & A.Gray (original description)
Aster patens var. patentissimus (Lindl. ex DC.) Torr. & A.Gray accepted as Symphyotrichum patens var. patentissimum (Lindl. ex Lindl.) G.L.Nesom (original description)
Aster praealtus Torr. & A.Gray (original description)
Aster ptarmicoides var. lutescens (DC.) Torr. & A.Gray (original description)
Aster puniceus Torr. & A.Gray (original description)
Aster puniceus var. firmus (Nees) Torr. & A.Gray accepted as Symphyotrichum firmum (Nees) G.L.Nesom (original description)
Aster sect. Biotia Torr. & A.Gray (original description)
Aster sect. Calliastrum Torr. & A.Gray (original description)
Aster sect. Oritrophium Torr. & A.Gray (original description)
Aster sect. Orthomeris Torr. & A.Gray (original description)
Aster sect. Oxytripolium (DC.) Torr. & A.Gray accepted as Symphyotrichum subg. Astropolium (Nutt.) Semple (original description)
Aster sibiricus Turcz. ex Torr. & A.Gray (original description)
Aster tenuifolius var. bellidiflorus (Willd.) Torr. & A.Gray accepted as Symphyotrichum lanceolatum var. lanceolatum (original description)
Aster tenuifolius var. ramosissimus Torr. & A.Gray accepted as Symphyotrichum lanceolatum subsp. lanceolatum var. lanceolatum (Willd.) G.L.Nesom (original description)
Aster xylorhiza (Nutt.) Torr. & A.Gray accepted as Xylorhiza glabriuscula Nutt. (original description)
Baccharis salicina Torr. & A.Gray (original description)
Bahia lanata var. tenuifolia (DC.) Torr. & A.Gray (original description)
Berlandiera incisa Torr. & A.Gray accepted as Berlandiera lyrata Benth. (original description)
Berlandiera texana var. betonicifolia (Hook.) Torr. & A.Gray accepted as Berlandiera betonicifolia (Hook.) Small (original description)
Berlandiera tomentosa var. dealbata Torr. & A.Gray accepted as Berlandiera pumila (Michx.) Nutt. (original description)
Bidens cernua var. elata Torr. & A.Gray accepted as Bidens amplissima Greene (original description)
Bigelowia nudata var. spathulifolia Torr. & A.Gray (original description)
Bigelowia nudata var. virgata (Nutt.) Torr. & A.Gray accepted as Bigelowia nudata var. nudata (original description)
Blennosperma californicum (DC.) Torr. & A.Gray accepted as Coniothele californica DC. (original description)
Brachychaeta Torr. & A.Gray accepted as Solidago L. (original description)
Brachychaeta cordata (Short & R.Peter) Torr. & A.Gray accepted as Solidago sphacelata Raf. (original description)
Bradburia Torr. & A.Gray (original description)
Bradburia hirtella Torr. & A.Gray (original description)
Bulbostylis californica Torr. & A.Gray accepted as Brickellia californica (Torr. & A.Gray) A.Gray (original description)
Burrielia chrysostoma (Fisch. & C.A.Mey.) Torr. & A.Gray accepted as Lasthenia californica DC. ex Lindl. (original description)
Cacalia diversifolia Torr. & A.Gray accepted as Arnoglossum diversifolium (Torr. & A.Gray) H.Rob. (original description)
Callichroa douglasii Torr. & A.Gray accepted as Layia chrysanthemoides (DC.) A.Gray (original description)
Calycadenia tenella (Nutt.) Torr. & A.Gray accepted as Osmadenia tenella Nutt. (original description)
Calymmandra Torr. & A.Gray accepted as Filago Loefl. ex L. (original description)
Calymmandra candida Torr. & A.Gray accepted as Diaperia candida (Torr. & A.Gray) Benth. & Hook.f. (original description)
Carphephorus bellidifolius (Michx.) Torr. & A.Gray (original description)
Carphephorus corymbosus (Nutt.) Torr. & A.Gray (original description)
Centauridium Torr. & A.Gray accepted as Xanthisma DC. (original description)
Centauridium drummondii Torr. & A.Gray accepted as Xanthisma texanum var. drummondii (Torr. & A.Gray) A.Gray (original description)
Chrysopsis canescens (DC.) Torr. & A.Gray accepted as Heterotheca canescens (DC.) Shinners (original description)